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import uuid
from django.db import models
from tree_queries.models import OrderableTreeNode, TreeNode
from tree_queries.query import TreeQuerySet
class Model(TreeNode):
custom_id = models.AutoField(primary_key=True)
order = models.PositiveIntegerField(default=0)
name = models.CharField(max_length=100)
class Meta:
ordering = ("order",)
def __str__(self):
return self.name
class UnorderedModel(TreeNode):
name = models.CharField(max_length=100)
class StringOrderedModel(TreeNode):
name = models.CharField(max_length=100)
class Meta:
ordering = ("name",)
unique_together = (("name", "parent"),)
def __str__(self):
return self.name
class AlwaysTreeQueryModelCategory(models.Model):
def __str__(self):
return ""
class ReferenceModel(models.Model):
position = models.PositiveIntegerField(default=0)
tree_field = models.ForeignKey(
Model,
on_delete=models.CASCADE,
blank=True,
null=True,
)
class Meta:
ordering = ("position",)
def __str__(self):
return ""
class AlwaysTreeQueryModel(TreeNode):
name = models.CharField(max_length=100)
related = models.ManyToManyField("self", symmetrical=True)
category = models.ForeignKey(
AlwaysTreeQueryModelCategory,
on_delete=models.CASCADE,
blank=True,
null=True,
related_name="instances",
)
objects = TreeQuerySet.as_manager(with_tree_fields=True)
class Meta:
base_manager_name = "objects"
def __str__(self):
return self.name
class UUIDModel(TreeNode):
id = models.UUIDField(primary_key=True, default=uuid.uuid4)
name = models.CharField(max_length=100)
def __str__(self):
return self.name
class MultiOrderedModel(TreeNode):
first_position = models.PositiveIntegerField(default=0)
second_position = models.PositiveIntegerField(default=0)
name = models.CharField(max_length=100)
class Meta:
ordering = ("first_position",)
def __str__(self):
return self.name
class TreeNodeIsOptional(models.Model):
parent = models.ForeignKey("self", null=True, on_delete=models.CASCADE)
objects = TreeQuerySet.as_manager()
def __str__(self):
return ""
class InheritParentModel(TreeNode):
name = models.CharField(max_length=100)
class InheritChildModel(InheritParentModel):
pass
class InheritGrandChildModel(InheritChildModel):
pass
class InheritAbstractChildModel(InheritParentModel):
class Meta:
abstract = True
class InheritConcreteGrandChildModel(InheritAbstractChildModel):
pass
class RelatedOrderModel(TreeNode):
name = models.CharField(max_length=100)
class OneToOneRelatedOrder(models.Model):
relatedmodel = models.OneToOneField(
RelatedOrderModel,
on_delete=models.CASCADE,
primary_key=True,
related_name="related",
)
order = models.PositiveIntegerField(default=0)
def __str__(self):
return ""
class OrderedModel(OrderableTreeNode):
name = models.CharField(max_length=100)
def __str__(self):
return self.name
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